-- YouÂ?ll need to put all these containers in a one-quart-size, clear plastic zip-top bag.

-- YouÂ?ll need to place this bag in the security bin for screening.

Again, keep in mind these rules apply to carry-on, not checked luggage. Also, the TSA wants you to know that you can carry on more than 3 ounces of such items as prescription medications, baby formula and milk as long as you declare the items for inspection at security checkpoints.

It may sound simple enough, but officials are concerned that if you donÂ?t know the rules ahead of time, your screening might take longer. And if you havenÂ?t flown for a few months, you might not be aware of the changes.

The airport will install 3-1-1 banners in an effort to ensure everyone knows the rules before they reach screeners, said John Schalliol, the airportÂ?s executive director.

It will also provide plastic bags at the gift shop, at screening checkpoints, and at airline ticket counters for those who show up not knowing they need the bags for carry-on liquids, Schalliol said.

In addition, he said, the airport will run an advertisement explaining the 3-1-1 rules in SundayÂ?s Tribune.

ItÂ?s important to educate people who book flights over the holidays, Schalliol said, because many of them donÂ?t otherwise fly.

Â?Most of them will not have flown since August,Â? Schalliol said. Â?ItÂ?s going to be new to them. WeÂ?re just concerned that we might have a slow-down.Â?